Adhyāya 214: Tapas Redefined—Perpetual Discipline, Hospitality, and the Ethics of Eating (तपः-निरूपणम्, विघसाशी-अतिथिप्रिय-धर्मः)
सर्वगात्रप्रतायिन्यस्तस्या हानुगता: शिरा: । नेत्रयो: प्रतिपद्यन्ते वहन्त्यस्तैजसं गुणम्
sarvagātrapratāyinīyāḥ tasyā hānugatāḥ śirāḥ | netrayoḥ pratipadyante vahantyās taijasaṁ guṇam ||
Bhīṣma said: “The channels (nāḍīs/veins) that follow behind that (principal) conduit and spread throughout the whole body proceed to the eyes, carrying the ‘fiery’ quality—i.e., the power of grasping and perception.”
भीष्म उवाच
Perception is explained as a function supported by subtle bodily channels: the ‘fiery’ principle (tejas) is said to be conveyed through the body’s conduits to the eyes, enabling grasping/seeing. The verse frames sense-function as grounded in an underlying psycho-physical order rather than mere surface appearance.
In Śānti Parva’s instructional discourse, Bhīṣma is describing how sensory cognition operates. He outlines how channels spreading through the body, following a principal pathway, reach the eyes while bearing the taijasa quality that empowers perception.